root@bt:/media/TREKSTOR/wifi/64# make
KBUILD_NOPEDANTIC=1 make -C /lib/modules/`uname -r`/build M=`pwd`
make[1]: Entering directory `/usr/src/linux-source-2.6.39.4'
WARNING: Symbol version dump /usr/src/linux-source-2.6.39.4/Module.symvers
is missing; modules will have no dependencies and modversions.
CFG80211 API is prefered for this kernel version
Using CFG80211 API
LD /media/TREKSTOR/wifi/64/built-in.o
CC [M] /media/TREKSTOR/wifi/64/src/shared/linux_osl.o
CC [M] /media/TREKSTOR/wifi/64/src/wl/sys/wl_linux.o
CC [M] /media/TREKSTOR/wifi/64/src/wl/sys/wl_iw.o
CC [M] /media/TREKSTOR/wifi/64/src/wl/sys/wl_cfg80211.o
/media/TREKSTOR/wifi/64/src/wl/sys/wl_cfg80211.c: In function ‘wl_inform_single_bss’:
/media/TREKSTOR/wifi/64/src/wl/sys/wl_cfg80211.c:1817: error: too few arguments to function ‘ieee80211_channel_to_frequency’
make[2]: *** [/media/TREKSTOR/wifi/64/src/wl/sys/wl_cfg80211.o] Error 1
make[1]: *** [_module_/media/TREKSTOR/wifi/64] Error 2
make[1]: Leaving directory `/usr/src/linux-source-2.6.39.4'
make: *** [all] Error 2